The Southern Oxidants Study (SOS) conducted a major field research campaign in Nashville/Middle Tennessee area in June and July 1994 and 1995. The goal of this study was to improve scientific understanding of the processes that control the production and distribution of ozone in the troposphere.

The Georgia Institute of Technology tethered balloon ... system flew on 25 of the 40 1995 Nashville/Middle tennessee Ozone Study days. All flights were made from the Dickson Level II monitoring station located 40 km west of Nashville at approximately 36.35 degrees north latitude and 87.36 degrees west longitude. In addition to standard meteorological measurements collected during each flight (temperature, relative humidity, barometric pressure, wind speed, and wind direction), the balloon package also collected 30-second ozone (O3) data and isoprene samples in Tedlar bags.